dma-buf: add enum dma_resv_usage v4

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This change adds the dma_resv_usage enum and allows us to specify why a
dma_resv object is queried for its containing fences.

Additional to that a dma_resv_usage_rw() helper function is added to aid
retrieving the fences for a read or write userspace submission.

This is then deployed to the different query functions of the dma_resv
object and all of their users. When the write paratermer was previously
true we now use DMA_RESV_USAGE_WRITE and DMA_RESV_USAGE_READ otherwise.

v2: add KERNEL/OTHER in separate patch
v3: some kerneldoc suggestions by Daniel
v4: some more kerneldoc suggestions by Daniel, fix missing cases lost in
    the rebase pointed out by Bas.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085946.744568-2-christian.koenig@amd.com

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This commit is contained in:

Christian König 2021-11-09 11:08:18 +01:00

parent 6e87601b7e

commit 7bc80a5462

46 changed files with 215 additions and 126 deletions

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6

drivers/dma-buf/dma-buf.c

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drivers/dma-buf/dma-resv.c

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drivers/dma-buf/st-dma-resv.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c

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drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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drivers/gpu/drm/drm_gem.c

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drivers/gpu/drm/drm_gem_atomic_helper.c

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drivers/gpu/drm/etnaviv/etnaviv_gem.c

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drivers/gpu/drm/i915/display/intel_atomic_plane.c

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drivers/gpu/drm/i915/gem/i915_gem_busy.c

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drivers/gpu/drm/i915/gem/i915_gem_lmem.c

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drivers/gpu/drm/i915/gem/i915_gem_userptr.c

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drivers/gpu/drm/i915/gem/i915_gem_wait.c

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drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c

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drivers/gpu/drm/i915/i915_request.c

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drivers/gpu/drm/i915/i915_sw_fence.c

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drivers/gpu/drm/msm/msm_gem.c

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drivers/gpu/drm/nouveau/dispnv50/wndw.c

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drivers/gpu/drm/nouveau/nouveau_bo.c

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drivers/gpu/drm/nouveau/nouveau_fence.c

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drivers/gpu/drm/nouveau/nouveau_gem.c

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drivers/gpu/drm/panfrost/panfrost_drv.c

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drivers/gpu/drm/qxl/qxl_debugfs.c

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drivers/gpu/drm/radeon/radeon_display.c

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drivers/gpu/drm/radeon/radeon_gem.c

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drivers/gpu/drm/radeon/radeon_mn.c

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drivers/gpu/drm/radeon/radeon_sync.c

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drivers/gpu/drm/radeon/radeon_uvd.c

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drivers/gpu/drm/scheduler/sched_main.c

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drivers/gpu/drm/ttm/ttm_bo.c

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drivers/gpu/drm/vgem/vgem_fence.c

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drivers/gpu/drm/virtio/virtgpu_ioctl.c

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drivers/gpu/drm/vmwgfx/vmwgfx_bo.c

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drivers/gpu/drm/vmwgfx/vmwgfx_resource.c

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drivers/infiniband/core/umem_dmabuf.c

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include/linux/dma-buf.h

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include/linux/dma-resv.h

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